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sergejj [24]
3 years ago
10

How does replication provide a means for passing dna from cell to cell?

Biology
1 answer:
gtnhenbr [62]3 years ago
8 0
It duplicates itself
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Please explain the difference between a frameshift mutation and a base substitution mutation.
harina [27]

Answer:

A frameshift changes every codon past it. A base substitution only changes one codon.

Explanation:

DNA is comprised of nucleotides (A, C, T, G) that make up amino acids. Every three bases is called a codon and represents an amino acid.

In a frameshift mutation, a nucleotide is either added or deleted from the sequence. This offsets the entire sequence after it because the reading frame shifts. Here's an example:

ACTGCTATCGTCATC

If another T is added in between the first and second codons, then every codon after will be changed.

ACT>T<GCTATCGTCATC

A substitution mutation is usually less severe, as it only alters one codon in the sequence. These occur when one nucleotide is replaced by another one. Here's an example:

ACTGCTATCGTCATC

Let's say the first G is replaced by a T.

ACT>T<CTATCGTCATC

As you can see, none of the other codons changed.

Typically, a frameshift mutation is considered worse than a substitution mutation.

7 0
3 years ago
Read 2 more answers
What are the 5 spheres that make up the earth?
Leto [7]

Atmosphere.

Hydrosphere.

Biosphere.

Cryosphere.

Lithosphere(also referred to as the Geosphere).

7 0
2 years ago
Read 2 more answers
How do nerve cells form different types of tissues? A. A group of these cells perform similar functions and become nerve tissue
lions [1.4K]
It's letter c i believe, because they need the DNA's instruction on how to copy the exact tissue copy.
8 0
2 years ago
Both mitiosis and meiosis begin with a diploid cell that contains replicated chromosomes. explain the main difference between th
xz_007 [3.2K]
The main difference is that mitosis occurs in body cells and meiosis occurs in sex cells. Mitosis produces identical daughter cells and meiosis produces genetically different daughter cells.
3 0
3 years ago
Place the events in order of sympathetic motor pathway. 1. postganglionic neuron depolarizes 2. acetylcholine binds to sweat gla
Ipatiy [6.2K]

Answer: 1, 3, 5, 2, 6, 4

Explanation:

The sympathetic nervous system stimulates many parts of the body for action during times of danger.

This signalling starts when the postganglionic neuron depolarizes, and postganglionic neuron releases acetylcholine, then the acetylcholine binds to nicotinic receptor in order to transmit impulse, and further the acetylcholine binds to sweat gland’s muscarinic receptor to disrupt or inactivate the action of acetylcholine. Finally, the neuron releases acetylcholine, and the neuron exits lumbar segment of spinal cord.

The danger has now been fully interpreted.

6 0
3 years ago
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